Improvement in carriage-seats



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`Carriage Seats. NDLSY, Patented Feb.l7,1874.

l2Shee't-snSheet'. W. BALL.

`Carriaga Seats;v f No.l47,687. i Patented Feb.\1.1874.

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UNITED STATES PATENT OrTIoEo WILLIAM ItALIi, OF BATTLE CREEK, MICHIGAN.

IMPROVEMENT IN CARRIAGE-SEATS.

Specification forming part of Letters Patent No. 147,687, dated February 17, 1874.; application filed December 6, 1873.

To all Vwhom it may concern Be it known that I, WILLIAM BALL, of Battle Creek, in the county of Calhoun and State of Michigan, have invented a new and valuable Improvement in Spring-lagon Seats, and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings making a part of this specification, and to the letters and figures of reference marked thereon.

Figure l of the drawings is a representation of a front view of my spring-wagon seat. Fig. i5 is a sectional view ofthe saine. Fig. 3 is an end, and Fig. 4 a bottoni, view of the saine.

This invention has relation to springwagon seats; and it consists in springseat boards, which are secured together by a double-inclined cross-bar, and also secured to crossed leg supports, in such manner that the springaction of the seat is derived from a'torsion or twisting action of its boards, as will be here- The following a description of niy invention.

In the annexed drawings, A A represent two seat boards, which are made of some tough springy wood, and which may ber of any desired length, width, and thickness. B

'represents a cross -bar, which inclincs from its ends to the middle of its length, and which is secured to the two seatboards at the middle of their length, thus giving the desired longitudinal concavity to the upper side of the seat, shown in Figs. 2 and C G represent two of the seat-supports, which are secured to the bottom sides of the front board A, and extended backward and downward to the rear part of the wagon-box D, on the upper edge ot' which their ends rest by means of hooked feet (l. At c the upper ends ofthe supports are extended back beneath the front edge of the rear seat-board A', for the purpose of supporting this board where itreceives the greatest strain. C C represent the front supporting-legs, which cross the legs C G inside, and are rigidly secured to the bottom side of the rear-seat board A. Y'.lhese legs C C extend forward and downward, and have rollers b b applied on their ends, which bear on the upper edge of the wagon-box D. The ears c, to which the rollers b are attached, prevent lateral displacement of the legs C C.

For the purpose of rmly securing the ends of the seat-boards to the ends of the supporting-legs, I employ metal battens a a, and secure them on top of the seat-boards ]ust over the ends of the legs, by the same screws or bolts which are used to secure the saidv boards to their legs.

If desirable, rollers may be applied to the lower ends of the four legs, although I prefer to use rollers on the front legs only.

G represents the back of the seat, which is connected by hinges 7L and flexible arm-strips g to the seat.

It will be seen from the above description that the seat-boards are rigidly held together by the obtuse angular cross-bar B, and that they are connected at their ends to independ ently-reniovable legs, which cross each other on opposite sides ofthe wagon-box, and are free to spread apart when a weight is on the seat, which weight will act to twist the ends of the seat-board and make thein approximate a horizontal pla-ne.

I thus obtain the required springaction by torsion of the seat-boards on opposite sides of their connecting cross-bar.

Should the seat-boards sag from any cause, they can be readily removed from their crossbar and legs, and inverted.

What I claim as new, and desire to secure by Letters Patent, s-

1. The spring-seat boards A A', connected by an angular cross-bar, B, in combination with the ii'ldependent leg-supports C C', substantially as described.

2. The rigid battons a a, applied to the spring-seat boards A A', over the upper ends of the legs C C', in combination with the angular cross-bar B, as and for the purposes set forth.

3. The foot-pieces c d, and rollers b, coinbined with the legs C C', seat-boards AA, and cross-bar B, substantially as and for the purposes set forth.

In testimony that I claim the above I have hereunto subscribed my naine in the presence of two witnesses.

Witnesses: WILLIAM BALL.

C. C. PEAVEY, E. HAR-BECK. 

